{
  "address": "4515 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4515/",
  "apn": "2749049",
  "block": "2749",
  "lot": "049",
  "eas_baseid": "345434",
  "coordinates": {
    "lat": 37.75733,
    "lng": -122.438307
  },
  "parcel": {
    "year_built": 1953,
    "units": 1,
    "stories": 3,
    "rooms": 6,
    "bathrooms": 3,
    "bedrooms": 4,
    "lot_area_sqft": 1951,
    "building_area_sqft": 2154,
    "basement_area_sqft": 621,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 4515 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 987064,
    "assessed_improvement_value": 731986,
    "last_sale_date": "2008-08-28"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Resource Evaluation Response",
    "yearbuilt": "1953",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201511162752",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-11-16",
      "status_date": "2015-12-11",
      "estimated_cost": 1,
      "revised_cost": 1000,
      "description": "verify installed direct vent montage fireplace",
      "source": "sf-building-permits"
    },
    {
      "number": "201510270933",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-10-27",
      "status_date": "2015-12-15",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa# 201207124753. all work is complete.",
      "source": "sf-building-permits"
    },
    {
      "number": "201510260792",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-10-26",
      "status_date": "2015-12-15",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa# 201209240476. all work is complete.",
      "source": "sf-building-permits"
    },
    {
      "number": "M570847",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-03-20",
      "status_date": "2015-03-20",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M544047",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-12-17",
      "status_date": "2014-12-17",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M517908",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-09-16",
      "status_date": "2014-09-16",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M486547",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-05-07",
      "status_date": "2014-05-07",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M365287",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-01-08",
      "status_date": "2013-01-08",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M353248",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-10-16",
      "status_date": "2012-10-16",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201209240476",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2012-09-24",
      "status_date": "2015-12-14",
      "estimated_cost": 87000,
      "revised_cost": 87000,
      "description": "revision to app#201207124753. facade alteration and basement conditioning:work to include new door and windows along front and rebuilt stair and conditioned space at basement.",
      "source": "sf-building-permits"
    },
    {
      "number": "M345629",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-08-31",
      "status_date": "2012-08-31",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201207124753",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2012-07-12",
      "status_date": "2015-12-14",
      "estimated_cost": 77000,
      "revised_cost": 120000,
      "description": "foundation replacement and rebuilding of exterior walkway and excavation of interior (basement only). no new conditioned area under this permit.plywood wall strengthening",
      "source": "sf-building-permits"
    },
    {
      "number": "201112150719",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-12-15",
      "status_date": "2012-05-02",
      "estimated_cost": 144000,
      "revised_cost": 144000,
      "description": "comply with nov 201111561. repair of failed retaining wall. placing concrete to strengthen exisiting retaining wall",
      "source": "sf-building-permits"
    },
    {
      "number": "201104194340",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-04-19",
      "status_date": "2011-06-02",
      "estimated_cost": 2500,
      "revised_cost": 2500,
      "description": "to comply w/nov 201111561 to repair wall (stucco) damaged by failed retaining wall at adjoining property at the side of the property.",
      "source": "sf-building-permits"
    },
    {
      "number": "201011034284",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2010-11-03",
      "status_date": "2015-12-15",
      "estimated_cost": 50400,
      "revised_cost": 113000,
      "description": "new stairs to roof, new stair penthouse & roof deck including glass guardrail 42\" & 42\" parapet.",
      "source": "sf-building-permits"
    },
    {
      "number": "200809040812",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-09-04",
      "status_date": "2008-11-25",
      "estimated_cost": 32000,
      "revised_cost": 32000,
      "description": "1 bathroom remodel. demolish existing shower, tub, sink & toilet. frame new entry door @ bath as pocket door & change locations of plumbing. install new tub, shower, toilet & sink in new location.",
      "source": "sf-building-permits"
    },
    {
      "number": "200506094622",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2005-06-09",
      "status_date": "2006-01-26",
      "estimated_cost": 75000,
      "revised_cost": 75000,
      "description": "renovation of (e) kitchen. new replacement windows @ front & west facades, new windows @ rear(south)",
      "source": "sf-building-permits"
    },
    {
      "number": "9909606S",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1999-05-15",
      "status_date": "2011-08-03",
      "estimated_cost": 200000,
      "description": "addition of 2nd fl & remodel of garage & 1st fl",
      "source": "sf-building-permits"
    },
    {
      "number": "9111689",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1991-07-03",
      "status_date": "1992-01-28",
      "estimated_cost": 3500,
      "description": "reroofing",
      "source": "sf-building-permits"
    }
  ],
  "sources": [
    {
      "id": "sf-eas-addresses",
      "name": "SF Enterprise Addressing System via DataSF",
      "query": "https://data.sfgov.org/resource/3mea-di5p.json?street_name=20TH&street_type=ST&address_number=4515",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-assessor-roll",
      "name": "SF Office of the Assessor-Recorder via DataSF (2025 secured roll)",
      "query": "https://data.sfgov.org/resource/wv5m-vpq2.json?parcel_number=2749049&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=2749&lot=049",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=2749049",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-planning-commission-minutes-2001-02-01",
      "name": "San Francisco City Planning Commission, minutes of the meeting of 1 February 2001",
      "label": "San Francisco City Planning Commission minutes, San Francisco Public Library (Internet Archive)",
      "query": "https://archive.org/details/50minutesofsanfran2001san/page/n98/mode/1up",
      "retrieved": "2026-11-02"
    }
  ],
  "historical_record": [
    {
      "date": "2001-02-01",
      "kind": "planning decision",
      "description": "The City Planning Commission did not take discretionary review and approved the project as modified, a second-story addition with new decks at the first floor level, 6-0.",
      "source": "sf-planning-commission-minutes-2001-02-01"
    },
    {
      "date": "2001-02-01",
      "kind": "occupancy",
      "description": "The building was an existing one-story-over-garage, single-family dwelling.",
      "source": "sf-planning-commission-minutes-2001-02-01"
    }
  ]
}